This is an early example of a cuffed pharyngeal tube. The cuffed airway was a significant development in pharyngeal tubes as it helped to protect the airway from blood and secretions. Black rubber tubing with spiral metal inner tube and red rubber pump mechanism attachedMoulded onto rubber bulb: Tycos Moulded onto rubber connector: MADE ONLY FOR PATENTEE / INDIA TYRE AND RUBBER CO / INCHINNAN / SCOTLAND Moulded into metal connection: Tycos / LONDONpharyngeal, ndia rubber & tyre company, airway, cuffed, scotland, tycos